CN105888643A - Automatic gas well produced-water discharging and metering system and application method thereof - Google Patents
Automatic gas well produced-water discharging and metering system and application method thereof Download PDFInfo
- Publication number
- CN105888643A CN105888643A CN201610355598.5A CN201610355598A CN105888643A CN 105888643 A CN105888643 A CN 105888643A CN 201610355598 A CN201610355598 A CN 201610355598A CN 105888643 A CN105888643 A CN 105888643A
- Authority
- CN
- China
- Prior art keywords
- water
- solenoid valve
- gas well
- water tank
- valve switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
Abstract
The invention discloses an automatic gas well produced-water discharging and metering system and an application method thereof. The automatic gas well produced-water discharging and metering system comprises a water storage tank communicated between a separator and a waste water tank of a gas well, an upper water solenoid valve switch is arranged between the water storage tank and the separator, a lower water solenoid valve switch is arranged between the water storage tank and the waste water tank, and a liquid level transmitter capable of monitoring the water storage tank in real time is further arranged on the water storage tank; the automatic gas well produced-water discharging and metering system further comprises a PLC (programmable logical controller) which is connected with the liquid level transmitter, the upper water solenoid valve switch, the lower water solenoid valve switch and a display screen respectively. Automatic produced-water discharging and metering can be realized by dealing with high and low water level of the water storage tank through the liquid level transmitter and controlling opening and closing of the switches by the PLC, drainage reliability of the separator of the gas well is improved, on the other hand, metering accuracy of produced water of the gas well is improved, dynamic analysis of the gas well is promoted, theoretical basis is provided for establishing a reasonable production system for the gas well, and efficient development for the gas well is guaranteed.
Description
Technical field
The present invention relates to a kind of for shale gas well output water automatic-discharging, the system of metering and using method thereof.
Background technology
The shale isolated water of gas well separator mainly uses drain valve to carry out automatic-discharging at present, this equipment master
Ball float to be relied on moves up and down under buoyancy and band moving valve plate switchs, due in valve valve block easily by liquid
Impurity in body blocks, the situation such as cause valve block to fit badly or not open, so cause drain valve to be collaborated or point
In device, water can not be discharged into the problems such as gas gathering network in time.
During moving up and down because of ball float, the switch degree of drain valve gradually changes, and causes drain valve to be discharged
Discharge unstable, output water ga(u)ge error in dipping is relatively big, causes gas well liquid loading dynamically to analyze difficulty.
Shale gas well typically selects electromagnetic flowmeter, turbine flowmeter etc. to carry out output water metering at present, the most also root
Select different ranges according to the difference of gas well aquifer yield, but output water error in dipping is the biggest, part aquifer yield
Bigger gas gathering station has to use Water Tank level gauge, is unfavorable for that scene realizes unmanned.
Summary of the invention
For above-mentioned weak point of the prior art, it is desirable to provide a kind of for shale gas well output
Water automatic-discharging, the system of metering and using method thereof, on the one hand improve gas well separator discharge opeing reliability,
On the other hand improve the gas well output water accuracy of measuring, promote dynamic analysis of gas well, formulate for gas well and close
The production system of reason provides theoretical foundation, ensures the Efficient Development of shale gas well.
To achieve these goals, technical scheme:
A kind of for shale gas well output water automatic-discharging, the system of metering, it includes and is communicated in shale gas
Water tank between separator and the Water Tank of well, has upper water power magnetic between this water tank and described separator
Threshold switch, has lower water solenoid valve switch, wherein, described water tank between this water tank and described Water Tank
On be additionally provided with the fluid level transmitter that can monitor this water storage tank water level in real time；
The output of the input port and described fluid level transmitter that also include PLC, this PLC is connected, should
The output port of PLC is connected to described upper water solenoid valve switch, described lower water solenoid valve switch and display
Screen.
Further, described water tank is a drain valve with volume.
Further, described water tank is parallel with a bypath valve, and the entrance point of this bypath valve is connected to institute
State between separator and upper water solenoid valve switch；The port of export of this bypath valve is connected to described lower water solenoid valve
Between switch and described Water Tank；
The output port of described PLC is also associated with this bypath valve.
Further, described PLC is Siemens's S7-300 series of PLC.
A kind of for shale gas well output water automatic-discharging, the using method of the system of metering, it includes step
Have,
S1, by separator water, PLC controls described lower water solenoid valve switch, bypath valve is closed, control institute
Stating water solenoid valve switch to open, described water tank carry out water storage, described fluid level transmitter monitors this water storage
The water level of tank；
S2, monitor the water in this water tank when described liquid level speed changer and reach to set after high water level, PLC control
Make described upper water solenoid valve switch close, control described lower water solenoid valve switch open, described water tank enter
Row draining, the water level of this water tank monitored by described liquid level speed changer；
After S3, water in described fluid level transmitter monitors this water tank reach to set low water level, PLC control
Make described lower water solenoid valve switch close, control described upper water solenoid valve switch open, by described water tank again
Secondary carry out water storage, repeat with this；
S4, described PLC by described fluid level transmitter to setting high water level and the water level set between low water level
Difference, then it is multiplied by the water discharging number of described water tank, draining total amount can be calculated and show in described display screen
Show.
Further, when keeping in repair or clean described water tank or described upper water solenoid valve switch, described lower water
During electromagnetic valve switch, PLC controls described upper water solenoid valve switch and closes, controls described bypath valve and open.
Beneficial effects of the present invention: simple in construction, simple operation, on the one hand improve gas well separator discharge opeing
Reliability, on the other hand improves the gas well output water accuracy of measuring, promotes dynamic analysis of gas well, for gas
Well is formulated and is reasonably produced system offer theoretical foundation, ensures the Efficient Development of shale gas well.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of the present invention；
Fig. 2 is the control block diagram of the present invention.
Detailed description of the invention
The present invention is further described below in conjunction with specific embodiment and accompanying drawing.
A kind of described for shale gas well output water automatic-discharging, the system of metering as shown in Figure 1, Figure 2, it includes
Have the water tank 11 between the separator and the Water Tank that are communicated in shale gas well, this water tank 11 and separator it
Between have upper water solenoid valve switch 10, have between this water tank 11 and Water Tank lower water solenoid valve switch 12,
Wherein, water tank 11 is additionally provided with can monitor the fluid level transmitter 13 of this water tank 11 water level in real time；
This system also includes PLC16, such as uses Siemens's S7-300 series of PLC, the one of this PLC16
Input port is connected with the output of fluid level transmitter 13, and the output port of this PLC16 is connected to
Water solenoid valve switch 10, lower water solenoid valve switch 12 and display screen 17.
The present invention is by improving research and development, pin on the basis of existing shale gas well output water automatic-discharging
To in the past to produce discharge that Chinese effluent had not in time, the situation such as draining is unstable, error in dipping is big,
Design has the water tank 11 of fluid level transmitter 13, and the upper water solenoid valve of this water tank 11 entrance end is opened
Pass 10, lower water solenoid valve switch 12 carry out coordinating draining, simple operation, on the one hand improve gas well separator
Discharge opeing reliability, on the other hand improves the gas well output water accuracy of measuring, promotes dynamic analysis of gas well,
Formulate for gas well and system offer theoretical foundation is reasonably provided, ensure the Efficient Development of shale gas well.
In this example, this water tank 11 is a drain valve with volume 15, i.e. drain valve as water tank
With, and on this drain valve, install the fluid level transmitter 13 of teletransmission additional, for Liquid level.
Meanwhile, water tank 11 being parallel with a bypath valve 14, the entrance point of this bypath valve 14 is connected to
Between separator and upper water solenoid valve switch 10；The port of export of this bypath valve 14 is connected to lower water solenoid valve
Between switch 12 and Water Tank；The output port of PLC16 is also associated with this bypath valve 14, passes through PLC16
Control unlatching and the closedown of bypath valve 14.Carry out keeping in repair or to water tank 11 or on water solenoid valve switch
10, when lower water solenoid valve switch 12 is safeguarded, draining can be carried out by this bypath valve 14, it is ensured that whole
The normal operation of individual product Chinese effluent.
The using method of this system, has including step,
S1, by separator water, PLC16 controls lower water solenoid valve switch 12, bypath valve 14 is closed, controlled
In system, water solenoid valve switch 10 is opened, water tank 11 carry out water storage, and fluid level transmitter 13 monitors this water storage
The water level of tank 11；
After S2, water in this water tank 11 monitored by liquid level speed changer 13 reach to set high water level, by PLC16
Water solenoid valve switch 10 closedown in control, control lower water solenoid valve switch 12 are opened, water tank 11 carry out
Draining, the water level of this water tank 11 monitored by liquid level speed changer 13；
After S3, water in fluid level transmitter 13 monitors this water tank 11 reach to set low water level, by PLC16
Control water solenoid valve switch 10 in the closedown of lower water solenoid valve switch 12, control to open, by water tank 11 again
Carry out water storage, repeat with this；
S4, PLC16 pass through the fluid level transmitter 13 water-head to setting between high water level and setting low water level,
It is multiplied by the water discharging number of water tank 11 again, draining total amount can be calculated and show in display screen 17.
For automatic-discharging, fluid level transmitter 13 monitor the water level in water tank 11 in real time, and at PLC16
High water level in water tank 11, low water level benchmark are inside previously set, when fluid level transmitter 13 is monitored to water storage
Water level in tank 11, when this setting high water level, setting low water level position, is controlled corresponding upper water by PLC16
Electromagnetic valve switch 10, lower water solenoid valve switch 12 is turned on and off, and then realizes separator and flow to this water tank
Water in 11 is automatically drained out to Water Tank.
And function of measuring, then it is that the water discharging number by water tank 11 is poor, at PLC16 with setting high-low water level
In carry out multiplying and draw.
Finally, when keeping in repair or clean water tank 11 or upper water solenoid valve switch 10, lower water solenoid valve switch
When 12, in PLC16 control, water solenoid valve switch 10 closedown, control bypath valve 14 are opened, to protect
Demonstrate,prove the normal operation of whole shale gas well.
The technical scheme provided the embodiment of the present invention above is described in detail, tool used herein
Principle and the embodiment of the embodiment of the present invention are set forth by body example, and the explanation of above example is only
It is adapted to assist in understanding the principle of the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, depend on
According to the embodiment of the present invention, detailed description of the invention and range of application all will change, in sum,
This specification content should not be construed as limitation of the present invention.
Claims (6)
1. one kind is used for shale gas well output water automatic-discharging, the system of metering, it is characterised in that: include
The water tank (11) being communicated between separator and the Water Tank of shale gas well, this water tank (11) is with described
There is between separator upper water solenoid valve switch (10), have between this water tank (11) and described Water Tank
Lower water solenoid valve switch (12), wherein, described water tank (11) is additionally provided with and can monitor this water storage in real time
The fluid level transmitter (13) of tank (11) water level；
Also include PLC (16), an input port of this PLC (16) and described fluid level transmitter (13)
Output be connected, the output port of this PLC (16) be connected to described upper water solenoid valve switch (10),
Described lower water solenoid valve switch (12) and display screen (17).
It is a kind of for shale gas well output water automatic-discharging, the system of metering,
It is characterized in that: described water tank (11) is a drain valve with volume (15).
It is a kind of for shale gas well output water automatic-discharging, the system of metering,
It is characterized in that: described water tank (11) is parallel with a bypath valve (14), this bypath valve (14)
Entrance point is connected between described separator and upper water solenoid valve switch (10)；This bypath valve (14)
The port of export is connected between described lower water solenoid valve switch (12) and described Water Tank；
The output port of described PLC (16) is also associated with this bypath valve (14).
It is a kind of for shale gas well output water automatic-discharging, the system of metering,
It is characterized in that: described PLC (16) is Siemens's S7-300 series of PLC.
5. one kind according to claim 3 for shale gas well output water automatic-discharging, the system of metering
Using method, it is characterised in that: include that step has,
S1, by separator water, PLC (16) control described lower water solenoid valve switch (12), bypath valve
(14) close, control described upper water solenoid valve switch (10) open, described water tank (11) carry out
Water storage, described fluid level transmitter (13) monitors the water level of this water tank (11)；
S2, when described liquid level speed changer (13) monitor the water in this water tank (11) reach set high water level
After, PLC (16) control described upper water solenoid valve switch (10) and close, control described lower water solenoid valve and open
Closing (12) to open, described water tank (11) carry out draining, the monitoring of described liquid level speed changer (13) should
The water level of water tank (11)；
S3, water in described fluid level transmitter (13) monitors this water tank (11) reach to set low water level
After, PLC (16) control described lower water solenoid valve switch (12) and close, control described upper water solenoid valve and open
Close (10) to open, described water tank (11) again carry out water storage, repeat with this；
S4, described PLC (16) to setting high water level and set low water level by described fluid level transmitter (13)
Between water-head, then be multiplied by the water discharging number of described water tank (11), draining total amount can be calculated also
Display in described display screen (17).
The most according to claim 5 for shale gas well output water automatic-discharging, the use of the system of metering
Method, it is characterised in that: when keeping in repair or clean described water tank (11) or described upper water solenoid valve switch
(10), described lower water solenoid valve switch (12) time, PLC (16) control described upper water solenoid valve switch (10)
Close, control described bypath valve (14) and open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610355598.5A CN105888643A (en) | 2016-05-26 | 2016-05-26 | Automatic gas well produced-water discharging and metering system and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610355598.5A CN105888643A (en) | 2016-05-26 | 2016-05-26 | Automatic gas well produced-water discharging and metering system and application method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN105888643A true CN105888643A (en) | 2016-08-24 |
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ID=56717828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610355598.5A Pending CN105888643A (en) | 2016-05-26 | 2016-05-26 | Automatic gas well produced-water discharging and metering system and application method thereof |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667964A (en) * | 2019-02-03 | 2019-04-23 | 四川乐山伟业机电有限责任公司 | A kind of autocontrol natural gas steam trap group |
| CN109695444A (en) * | 2019-02-03 | 2019-04-30 | 四川乐山伟业机电有限责任公司 | A kind of compound desander |
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| CN109667964A (en) * | 2019-02-03 | 2019-04-23 | 四川乐山伟业机电有限责任公司 | A kind of autocontrol natural gas steam trap group |
| CN109695444A (en) * | 2019-02-03 | 2019-04-30 | 四川乐山伟业机电有限责任公司 | A kind of compound desander |
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Application publication date: 20160824 |